Trolley-pole.



W. W. CLARK.

TROLLEY POLE. APPLICATIYON HLED FEB. 16. 1914.

1 #523070 Patented Sept. 7, 1915.

w/rn/wsm; v I EA/r012 72. 23. (4M By E A TTOHIVEY COLUMBIA PLANOGRAPH$0.. WASHINGTON. D. c.

WILLIAM W. CLARK, on PORTLAND, ionneomnssrenort or orTnHALr 'ro IRVING:r.

', BOYCE, or PORTLAND, OREGON.

' 'rnonnnmrorin.

To all whom it may concern i Y Be it known that I, WILLIAM W. CL K, acitizen of the United "States, residing 'at Portland, in the county ofMultnomah and State of Oregomhave invented certain new and usefulImprovements in Trolley-Poles, of which the following is aspecification.

My invention relates to trolleys that are adapted to be applied toelectric cars and like vehicles, and has for its object to provide meansfor keeping the trolley-wheel in constant contact with the conductor atall times while in use.

A further object of my invention is to provide a device of this kindthat is simple in construction, durable, efficient in action,

- 17 are provided at polnts intermediate arms and inexpensive inmanufacture.

WVith these and other. useful objects in view, my invention consists ofcertain novel features of construction, combinations of elements andarrangements of parts to be hereinafter particularly pointed out andspecifically claimed.

In order to fully comprehend my invention and the art to which itrelates, ref-. erence is made to the accompanying drawing, which, takenin connection with the specification forms this application, and ofwhich Figure 1 is a top plan view of my invention. Fig. 2 is a sideelevation of same, and Fig. 3 is a perspective of a modified form ofswivel; a novel form of base would be required with this structure.

Now referring to the drawing (in which like characters of referenceindicate like parts), the numeral 2 indicates a swivel to which isintegrally fastened transverse arms 3, rest 4, and rod 5 inthe modifiedform as shown in Fig. 3. Pivoted to said swivel is p a trolley-pole 6 bymeans of pin 7, while said swivel is revolubly mounted to the roof of acar (represented by line 8) by means of a stud 9, which stud also passesthrough base 10 to which is attached a revolving-pole 11; saidrevolving-pole serving as a means of turning trolley-pole 6 around tothe reverse end of a car; this revolving-pole, however, is only usedwhen a single trolley-pole is attached to a car, and obviously, isunnecessary when a trolley-pole is attached to each end.

Pivotally fastened to the free end of trolley-pole 6, is a harp 12 whichserves as i Specification of Letters Patent.

. bearing means'for sheave 13 which contacts noted by observing Figs. 1and 2 that harp 12 has a semicircular plate 14: extending from the lowerportion thereof which serves as a bearing means for the trolley-poleandwhich also adds strength to said harp. F astened also to said harpare arms 15, from which pass guide-wires 16 to' arms 3; said guide-wiresserving to hold sheave 13v in longitudinal alinement with-the conductorwhen trolleypole 6 is at an angle with relation'to roof 8', theseguide-wires being of great utility when the car is turning a curve. Inorder to brace said guide-wires, sleeves 3 and 15 respectively; saidsleeves being integrally fastened to socket 18 which is rigidly securedto trolley-pole 6.

In Fig. 2 is shown a hook 19 secured to roof 8, and serves to preventlateral movement of revolving-pole 11, while said revolving-pole hasattached thereto another hook 20 to engage loop 21 in trolley-pole 6when said trolley-pole is pulled downwardly by means of cord 22. Thefront end of the swivel has attached thereto the ordinary form of rods23, which rods extend through apertures in plate 23*. I provide,moreover, a fixed head 24: on the base 10 against which thrusts one endof the spring 24, the other end of the spring thrusting against theplate 23. In order to adjust the stretch of the spring, I provide a bolt24 extending to the plate 28* and nut 25 on the outer end of the bolt.

It will be seen from the foregoing that any slight downward movement ofthe pole 6 will move the left end of the swivel 2 upwardly and to theright, thus increasing the stretch on the spring 2& which conse- 7Patented Sept. '7, 1915. Application filed February 16, 1914. 'ScrialNo. 819,115. i

quently resists more strongly and holds the pole in the position shownexcept when it is binations of elements considered essential inmaterializing the same, I wish to include in this application allmechanical equivalents and substitutes that may be fairly considered tolie within the scope and purview of Having thus fully described myinvention so that others skilled in the art to which it relates may beenabled to construct and use the same, what I claim and desire to secureby Letters Patent, is

1. The combination with a swivel, of a trolley-pole, means'to attachsaid swivel to a car, a harp pivoted to the free end of thetrolley-pole,bearing means in said harp, a sheave mounted on saidbearing means, and

positively acting devices to aline the harp with a conductor,substantially as described.

2. The combination with a swivel, of

means to attach said swivel to the roof of a car, a trolley-polepivotedto said swivel and arms passing transversely of saidswivel, aharp pivoted to the free end of said trolleypole, bearing. means in saidharp, and a sheave revolubly mountedon said bearing, transverse arms atthe upper side, of said harp, Wires passing from said arms to. the armsofthe swivel, said wires serving to Copies of this patent may beobtained for aline the sheave with a conductor, and means to revolvethetrolley pole onthe'roof of the car, substantially as described.

3. The a combination with a swivel, of means to attach. said swivel to acar, arms transversely attached to said swivel, a trolley-pole pivotallymounted in said swivel, a harp pivoted to the free end of saidtrolleypole,'a rest'at the lower side of said harp and transverse armsat the upper side, a sheave revolubly mounted in said harp, guide-wirespassing from the arms of the harp to, the arms of the'swivel, sleevesintermediate said arms to brace the guide-wires, means to: support saidsleeves attached to the tro11ey-p0le,,and means to raise and lower saidtrolley-pole, substantially as described. In. testimony that'I claim theforegoing as my own, I hereunto afiix my signature in the presence oftwo witnesses.

v 7 WILLIAM w. CLARK. Witnesses: I a 1 PETER HABERL IN, I LESTERHUMPHREYSV.

five cents each, hy addressing the Commissioner of Patents, Washington,D. G. a

